Flushing-vent.



PATENTED JULY il, 1905,

2. T m u u Uff@ H U s n wu (|12 T r N m m y 1 2 lilwii Ill l, *i W 'I'. H., CLARK.

FLUSHING VENT.

APPLIOATION PILED JAN.16,1905.

WITH/8858.'

L@ Abg/@7% HNEVS no. 793,9e9.

itt L/ftns Patented July t, 1905i.

' lll'lOll/[AS ll. CLARK, Oli SCRANTN, PENNSYLVANIA.

ll?"-l..llll2"al"llllilllign-lilllilillllllwllhn SPECIFICATION forming part of Letters Patent No. 793,999, dated .Tnly t, 1905.

Application tiled January 16, 1905. Serial lilo. 241,290.

leit known that Al, 'llrrolnas lili. CLARK, a citizen ot the VUnited States, residing at tiel-anton, in the county ot Lackawannzrand rltate ot Pennsylvania, have invented. certain llew alld uset'ul lnllrll'ovenlents ill ,ll`lushingvvents, ot which the tollowing is a specilication.

This inventioll `relates to ventilation systems Ytor .liql'lid-seal traps; and it has for its object lo provide all illlproved means for cleaning the vent-pipe, and thereby preventing a complete siphoning et theseal, which siplloning takes place as soon as the veiltpipe has become clogged.

A 'Further object is to dispel'lse with a great deal oit the p illillg now employed for Vventing sewage systems.

tlther and still turther objects will appear ill the tollowing description and. will be more lilarticularly pointed ont in the claims.

ln the drawings, Figure l is a diagranlnlatic view oit nly system as applied to an ordinary gooseneck seal-trap attached to a kitcllen-sink. Fig. 2 is a view, partly ill section, showing the air-'inlet valve and the valve for preventing the tlushing water esca ping through the air-:inlet valve.

'l indicates a sink, 2 the water-lilipes, and 3 the ordinary gooseneck liquid-seal trap connected to the discharge ot the sink 1.. Leading Yt'ronl the discharge end ot the liquid-seal trap is a pipe l, which :is connected to the outside atmosphere by a branch 5, led trom the pipe 4l; through the nearest wall in the house to dispense with unnecessary pilling` At the end oit the branch pipe a depending valve-casing G, which carries a ball-valve T to prevent the escape of sewer-gas tllrough the pipes 4l. and 5, but which admits air into tllc discharge ot the seal to ventilato the saale. htounted ill the branch pipe 5 is a valve-casing 8, carrying a float ball-valve 9, which norn'lally rests on a seat l() and permits the air to pass around it to the seal-trap 2l, but which when water enters the casing S by a means hereinafter described rises against the seat il and prevents the outflow ot the water through the air-vent valve at thc end o'tl the pipe 5. l A branch pipe Al2 also leads troni the pipe l-lalld is connected to a watel'- pipe 2. Within this pipe is positioned a valve lil, by wllicll later itl-oni the waterpipe 2 n'lay be conducted to the discharge end ot the liqunl-seal trap El. i

lin the ordinary use ot the system water is discharged Atrom the sink l, through the liquid-seal trap 3 and air is let into, but prevented 'trom passing trom, thc trap by means ot pipe Llt, branch 5, alld air-inlet valve 7. Alfter a time grease alld other material will collect ill the pipe l, 't'olnling portion ot the air-vent, and the trap il will tllell sipllon and cause the sewer-gases to be distributed in the house. lllirhen it is tound that the vent-pipe is becollling clogged, the valve i3 is opened, thus causing water to bc conducted into the vent-pipe and 'forcing the clogging material into the discharge-pipe. The float-valve S) will close the vent-pipe alld prevent the Yllow ot the water through the inlet air-valve 7.

Various changes in torlll, proportion, and lnillor details ill construction oit my inventioll witllill the scope ot the appended claims may be made, and l thell'e'tore do not wish to be linlited to the enlbod'inlent herein shown alld described.

ll'aving thus described nly invention, what l elainl isl. ln a Aventilation system lior liquid-seal traps, the combination with the liquid-seal. trap, et a vent-,lilipe leading to the discharge end thereo't, an air-inlet valve tor the ventpipe, and a tlushing-pipe connected to the ven tpi pe.

ln a ventilation system ttor liquid-seal traps, thc combination with the liquid-seal trap, olf a vent-pipe leading trom the discharge end ther-ooit, all air-inlet valve :tor the vent-pipe, a `flushing-pipe connected to the vent-pipe, and a Vvalve ill the vent-pipe preventing a `tlow tronl the Yflushing-pipe through the air-inlet pipe. A

P). in a ventilation system ttor liquid-seal traps, the combination with the sink, ot a water-jplipe therefor, a liquid-seal trap connected to the discharge ot the sink, a vent-pipe leading trom the discharge end ot the liquid- Seal trap, an air-inlet vulve in the vent-pipe, a flushing-pipe connected to Jche Vent-pipe, and to the Waiter-supply pipe, a Valve in the flushing-pipe, und a valve in tho vent-pipe preventing a ioW from the flushing-pipe through the air-inlet valve.

LL. In a ventilation System for liquid-Seul traps, the combination with the liquid-Seal trap and u veut-pipe therefor of a flushingpipe connected to the vent-pipe, and a Valve 1o preventing a flowing from the HuShing-pipe through one end of the vent-pipe.

The foregoing Specication Signed this 20th day of July, 1904.

THOMAS H. CLARK. In presence of- EDWIN S. CLRKSON, HERVEY S. KNIGHT. 

